Preparation of Nano-Ceramics via Aqueous Sol-Gel Method Modified with Surfactants: An Overview

Abstract:

The present paper shows an overview related to the preparation and characterization of different nano-materials such as: silica, alumina, di- and tri-calcium silicates and a composite in the ternary CaO-SiO2-Al2O3 system. These nano-materials are related to the construction area so some basic tests are carried out to evaluate their cementitious and/or pozzolanic behavior. The nano-ceramics have been synthesized via hydrolysis and condensation of aqueous sol-gel method modified with surfactants using different precursors such as: tetraethyl orthosilicate (TEOS), calcium nitrate tetrahydrate (Ca(NO3)2.4H2O), sodium silicate (Na2O.SiO2), aluminum nitrate nonahydrate (Al(NO3)3•9H2O) and an industrial aluminum hydroxide (gibbsite). The synthesis parameters such as: pH, temperature, kind of surfactants, etc., are reported. To characterize the structural, chemical composition, particle size and morphology of the nanoparticles, different techniques such as: Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray diffraction (XRD), field emission electron microscopy (FESEM) and high-resolution transmission electron microscopy (HR-TEM) are used.

• Periodical: Materials Science Forum (Volume 644)
• Pages: 79-84
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.644.79
• Online since: March 2010
• Authors: Yibran Perera
• Keywords: Alumina, Di-Calcium Silicate, Oil-Well Cement, Silica, Sol-Gel (SG), Surfactant, Tri-Calcium Silicate

References

[1] Y. Perera, J. Cano y S. Martínez; Síntesis de nanopartículas de sílice vía sol-gel para aplicaciones en cementación de pozos petroleros, XII congreso Venezolano de Microscopia, Pto. Ordaz, Venezuela, (2006), abstract and poster.

[2] Y. Perera, J. Cano, S. Martínez, G. Quercia; Characterization of nano-cement phases by Field emission scanning electron microscopy (FESEM), abstract and poster at 9th CIASEM-Acta Microscópica. Vol. 16, (2007), No. 1-2.

[3] J. Cano; Síntesis y caracterización de nano-partículas de sílice empleando surfactantes vía solgel, B.S. Thesis; Universidad de los Andes (ULA). Mérida, Venezuela (2007).

DOI: 10.24265/kiru.2017.v14n2.08

[4] D. W. Schaefer: MRS Bull. Vol. 14 (1994).

[5] J. H. Johnston, A. J. McFarlane, T. Borrmann and J. Moraes; Current Applied Physics 4 (2004) pp.411-414.

[6] Information on http: /www. ulmen. cl.

[7] P. Balaguru and K. Chong; Proceedings of ACI session on: &anotechnology of Concrete: Recent Developments and Future Perspectives; Denver, USA (2006).

[8] P. Taylor, K. Rajan, B. Birgisson and T. Cackler; Workshop on &anotechnology for cement and concrete (2007). Information on: http: /www. intrans. iastate. edu/cncs/nanotech-wkshprpt. pdf.

[9] Z. Bittmar, P.J.M. Bartos, J. Nemecek, V. Smilauer, and J. Zeman; &anotechnology in Construction 3, Proceedings of the NICOM3, Springer, (2009).

[10] J. Uzcátegui; Estudio de la química sol-gel modificada con surfactante no-iónico para la obtención de nano-SiO2 a partir de silicato de sodio, 1st seminar related to the B.S. Thesis. Universidad de los Andes (ULA). Mérida, Venezuela (2008).

DOI: 10.18273/revsal.v49n4-2017001

[11] K. Agafonow; Estudio de la interacción de un nanoaditivo sobre la técnica de estabilización y solidificación de cortes de perforación (ESCP), B.S. Thesis, Universidad Simón Bolívar (USB). Caracas, Venezuela (2009).

DOI: 10.22209/rt.v43n1a07

[12] M. Morales; Síntesis y caracterización de nano-Al2O3 empleando surfactantes, 1st and 2nd seminars related to the B.S. Thesis. Universidad de los Andes (ULA). Mérida, Venezuela (2009).

[13] A. Hurtado; Preparación de partículas manométricas del sistema ternario CaO-SiO2-Al2O3 vía sol-gel modificado con surfactante no-ionico, B.S. Thesis; Universidad Central de Venezuela (UCV). Caracas, Venezuela (2008).

DOI: 10.47307/gmc.2022.130.s2.5

[14] Y. Perera; Micro- y &ano-cerámicas nacionales para operaciones de cementación de pozos de Hidrocarburos, Encuentro Académico Industrial JIFI-EAI 2008. abstract and special oral presentation. Caracas, Venezuela (2008).

[15] Y. Qing, Z. Zenan, K. Deyu, Ch. Rongshen; Influence of nano-SiO2 addition on properties of hardened cement paste as compared with silica fume, Const. and building Materials, 21, 539-545, (2005).

DOI: 10.1016/j.conbuildmat.2005.09.001